Environmental Engineering Reference
In-Depth Information
Table 15.10.
Maximum observed face slab displacements for modern concrete face rockfill dams.
Total displacement normal to face slab (1)
Long-term displacement (2)
Depth of
maximum
Displacement rate (mm/year)
Displacement
movement
First filling
Long term
Height
on first filling
(below crest)
(time since start
(time since end
Dam name
(m)
mm
mm
(m)
Comment (3)
of first filling)
of first filling)
Comments
Aguamilpa
185.5
n/a
320
0
For 6 years from EOC.
n/a
n/a
n/a
Alto Anchicaya
140
130
160
n/a
For 3 years from EOC
n/a
n/a
n/a
Bastyan
75
56
68
34
For 7.5 years from EOC
155 (0.33 yrs)
4 (0.2-2.5 yrs)
Filling over 0.2 yrs
0.5 (2.5-6.5 yrs)
Cethana
110
114
170
37
For 22 years from EOC
145 (0.83 yrs)
6 (0.6-3.9 yrs)
Filling over 0.23 yrs
2.8 (3.9-11 yrs)
0.9(11-22.4 yrs)
Chengbing
74.6
154
185
58
For 10 years from EOC
51 (3 yrs)
1.9 (0-3.7 yrs)
Filling over
approx. 5 yrs
Crotty
83
35
46
49
For 2.5 years from EOC
75 (0.47 yrs)
10.2 (0.15-1.25 yrs)
Filling over 0.3 yrs
Foz Do Areia
160
620
780
82
Duration unknown
1500 (0.42 yrs)
33 (2-3 yrs)
Filling over 0.42 yrs
Golillas
125
160
n/a
68
Recorded up to
n/a
n/a
n/a
0.5 years following
completion of first filling
Guanmenshan
58.5
n/a
25.6
29
For 5 years from EOC
n/a
n/a
n/a
Ita
125
461
n/a
n/a
n/a
n/a
n/a
n/a
Kotmale
90
98
-
-
-
-
-
-
Longxi
59
-
19.1
30
For 2.75 years from EOC
-
-
-
Lower Bear
75
550
625
42
For 2 years from EOC
600 (0.9 yrs)
115 (0.4-0.6 yrs)
Filling over 0.5 yrs
No. 1
13 (0.6-3.4 yrs)
Lower Bear
46
137
165
15
For 4 years from EOC
120 (1 yr)
11 (0.4-3.4 yrs)
Filling over 0.5 yrs
No. 2
Murchison
94
28
77
67
For 12 years after EOC
130 (0.2 yrs)
17 (0-0.4 yrs)
Filling over 0.05 yrs
5 (0.4-2.5 yrs)
1.4 (2.5-10.5 yrs)
(Continued)
Copyright © 2005 Taylor & Francis Group plc, London, UK
